ProcessBuilder并运行包含空格的OpenSSL命令
我在Ubuntu环境中使用jar执行openSSL命令时遇到问题。我的结论是,发生这种情况是由于文件路径中的空间正在作为命令中的参数(例如,以下命令中的SHA
256)传递。我已经使用了进程和ProcessBuilder
类来执行相同的操作:
:
String certFilePath = "/home/mplusuer/Desktop/Nishant/210515/TestData/TestData/SHA 256/nishant.cer"String []cmdGetAlgorithm = new String[3];
cmdGetAlgorithm[0] = "openssl x509 -in";
cmdGetAlgorithm[1] = certFilePath;
cmdGetAlgorithm[2] = "-noout -text -certopt no_subject,no_header,no_version,no_serial,no_validity,no_subject,no_issuer,no_pubkey,no_sigdump,no_aux,no_extensions";
ProcessBuilder pb = new ProcessBuilder(cmdGetAlgorithm[0], cmdGetAlgorithm[1],cmdGetAlgorithm[2]);
// setup other options ...
Process processGetAlgorithm = pb.start();
processGetAlgorithm.waitFor();
:
Runtime runtime = Runtime.getRuntime();String cmdGetAlgorithm = "openssl x509 -in "
+ certFilePAth
+ " -noout -text -certopt no_subject,no_header,no_version,no_serial,no_validity,no_subject,no_issuer,no_pubkey,no_sigdump,no_aux,no_extensions ";
Process processGetAlgorithm = runtime.exec(cmdGetAlgorithm);
最终命令如下所示,如果在命令提示符下单独执行,则工作正常,但使用Java代码执行时失败:
openssl x509 -in /home/mplusuer/Desktop/Nishant/210515/TestData/TestData/SHA 256/suketu.cer \ -noout -text -certopt no_subject,no_header,no_version,no_serial,no_validity,no_subject, \
no_issuer,no_pubkey,no_sigdump,no_aux,no_extensions
我也使用以下方法解决了此问题,但是没有按预期工作:
String quoted = "\"" + certFilePath + "\"";String escaped = certFilePath.replace(" ", "\\ ");
请查看并帮助我解决该问题。
回答:
cmdGetAlgorithm[0] = "openssl x509 -in";
...
正如@immibis在评论中所述,arg[0]
是程序名称。因此向量应类似于:
cmdArg[0] = "/usr/local/ssl/bin/openssl";cmdArg[1] = "x509";
cmdArg[2] = "-in";
cmdArg[3] = certFilePAth;
cmdArg[4] = "-noout"
cmdArg[5] = "-text";
cmdArg[6] = "-certopt";
cmdArg[7] = "no_subject,no_header,no_version,no_serial,no_validity," +
"no_issuer,no_pubkey,no_sigdump,no_aux,no_extensions ";
您应始终指定可执行文件的完整文件名,以确保您正在运行预期的可执行文件,而不是对手植入的文件。
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